Photo by @shonephoto (Robbie Shone) with words by adventure writer and presenter @CharlieBoscoe - The fact that a cold, dark tunnel can look welcoming towards the end of a freezing autumn day tells you everything about how hostile the Dolomites can be. In the height of summer, the prospect of temporarily living in these tunnels, as thousands of soldiers did, seems unappealing but conceivable. Come autumn, it is horrifying. As for winter…